Who Watches the Watchmen?

Another day, another wrongful conviction overturned in Texas due to prosecutorial misconduct. And consider this: every single one of these cases represents not one but three miscarriages of justice, first for the wrongfully convicted who spends years or even decades in prison for a crime he did not commit; second, it’s a miscarriage of justice for the victim; but third, it’s a miscarriage of justice for the person who actually did commit the crime and is allowed to delay or even escape justice, maybe even committing additional crimes. How many of these cases must occur before something finally happens to the small number of prosecutors who betray their oath in this manner?